What Ben said. Classic example of a plugged main jet or the fuel
passage to the main jet.
Ben Zwissler wrote:
> Jim,
>
> The problem is not your choke. Your carb is not clean enough yet.
> You've got a fuel restriction somewhere that's not allowing the carb
> to deliver enough fuel when the power demand goes high. Check for a
> plugged filter (if there is one), the fuel line, the float valve and
> if there's nothing there, then reclean the jets again.
>
> The choke is just masking the problem by enriching the mixture to make
> up for the fuel restriction but you'll never get full power that way
> since the choke will be partially blocking the air flow into the carb.
>
> Ben......
>
>
> Ben Zwissler
> bjzwissler@gmail.com
> Columbus, IN
> 1966 Triumph TR4A
> 1973 MG Midget
> 1980 Triumph TR8
> 2007 Mazda RX8
> 2002 Yamaha FZ1
> 2003 Honda ST1300
>
>
> On 10/17/2009 7:50 PM, Jim Stone wrote:
>> I have a Power Washer with a 6.5 HP Briggs and Stratton engine. I
>> bought it
>> about 7 years ago from Home Depot an I don't use it all that often.
>> About 4
>> years ago I forgot to add Stabil to the gas before storing it away.
>> It was a
>> year (or two) before I tried to use it again and, as you can imagine, it
>> wouldn't start. I could get it to run briefly with starting fluid,
>> but that
>> was it. I just put it away, deciding I'd fix it Maqana . Maqana
>> arrived last
>> weekend and I drained the now four year old gas (very yellow!), took the
>> carburetor apart and cleaned the jets, and re-assembled everything.
>> Amazingly, it started up pretty quickly when I was done! So far, so
>> good.
>>
>> It runs fairly smoothly with the choke set to "Start" and does a
>> decent job of
>> power washing. However, the engine dies as soon as I move it to the
>> "Run"
>> setting, regardless of how long I let it run and warm up first. I
>> can move
>> the choke part way in and it continues running, but it then dies as
>> soon as I
>> squeeze the washer trigger.
>>
>> Before I start fooling around with the choke settings (the owner's
>> manual is
>> pretty pitiful, but does indicate that the choke can be adjusted),
>> can anyone
>> think of another reason for it to run like this? The choke worked
>> fine when I
>> last used the washer and it doesn't seem likely to me that bad gas would
>> affect that adjustment.
>>
>> Thanks.
>>
>> Jim
>>
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